Device for deflating tire-tubes.



DEVICE 'FQR DEFLATING TIRE TUBES. APPLICATION FILED oEcl'l, 191s.

Patented Apr. 23,1918.

2 SHEETS-SHEET 1.

H. .l. OTTO. DEVICE FOR DEFLATING TIRE TUBES.

APPLICATION F|;L ED. DEC; 1. l9l6- Z SHEETS-SHEET Z- 3 2 R p A M n m P imwwi'or HENRY J. UTTO, OF EVANSVILLE, INDIANA.

DEVICE FOR DEFLATIHG TIRE-TUBES.

Specification of Letters Patent.

Patented Apr. 23, .lflnlb.

Application filed December r eie. Serial No. 13%,406.

to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and. use the same,

lvly invention has for its object to pro vide a siinply constructed and inexpensive yet highly ellicient means for deflating tire tubes without the expenditure of such time as is now required for the process, and to this end I employ certain novel features of construction and unique combinations'ofparts to be hereinafter fully described and claimed, the descriptive matter being sup- PlOIIICHiZQCl by the accompanying drawings which constitute a part of this application, and in which:

Figure 1 is a front elevation of the im proved device;

Fig. 2 is a top plan view Fig. 3 is an end elevation with part of the brake in section;

Fig. 4C is a vertical tfansverse section showing the device in use; and

Fig. 5 is a detail, section through the valve cap. I

In the drawings above briefly described, the numeral .1. has reference to a suitable base from which a pair of end frames 2 rise, said frames supporting a tube reel 3 upon which the tubes to .be deflated are wound, and a pressing roller f for forcing theta-hes against said reel.

Suitable means such as thespring 5 is provided for winding the reel 3, and if such a spring be empl0yed,it will by preference be disposed in a housing (5 located adjacent one end of the reel. Preferably carried by the other end of said reel is a brake wheel 7 having a handle 8 by means of which the reel may be turned to remove the deflated tube from the machine and to simultaneously rewind the spring 5, said brake wheel cooperating with a brake 9 which is adapted to lock said wheel against movement after thespring has been wound, until another tube is to be deflated.

The brake 9 is preferably in the fornrof an arm rising from a rock shaft 10 and having its upper end shaped to correspond with the periphery of the wheel T, said end having therein a cam groove 11 which decreases in depth toward its lower end, said groove receiving therein a ball; 12 preferably formed of rubber. A spring 13 exerts its tension to hold the brake 9 in operative position when a control lever 14 with which the shaft 10 is operated, is released from the keeper 15.

The pressing roller l is preferably disposed under the reel 3 and slightly in rear of the latter, said roller being mounted between the arms of a tl-shaped frame 16 which is supported on a shaft 17 extending between the rear ends of the end frames 2. An arm 18 depends from the yoke bar 19 of the frame 16 and a coiled spring 20 is connected at one end to said arm, the other end'of said spring" having an adjustable connection at 21 with an ear or the like rising from the base 1, whereby the tension of the spring may be adjusted so that the roller 4L will be forced toward the reel 3 to the extent required:

my preferred means may be employed for connectingi the tube with the rec butv said reel is prfferably formed with a longitudinal periheral channel 23 to receive the fold of the tube as shown in Fig. 4,

a pair of eyes 2% being disposed at the cnds of soul channel to rece ve a rod or bar 25 which is, passed through the fold as shown.

For the purpose of permitting air to escape from the usual valve V of the tube T, a valve cap 26 is provided, said cap having air discharge openingsfd? and being equipped With an internal pin or the like to abut the stem S of the valve to depress the same. By the use of this improved cap it is not necessary to remove the valve stems from tubes to be deflated and thus injury of said stems isnot so apt to occur.

In operation. the tube is folded diametrically opposite the valve V and is passedbetween the reel 3 and the roller at, The rod 25 is then passed through the fold and through the eyes whereupon the lever M will be engaged with keeper 15 to hold'the brake 9 out of contact with the brake wheel 7 This permits the spring 5 to come into action with the result that thenreel 3 is slowly Wound to force the air" out of the tube through the valve thereof, one of the improved caps 2-6 having been previously applied to said valve as shown in Figs. t

and 5. While the machine is thus expellingconstruction shown and said driving means under other work, thus eifecting a great saving in time. By the time the valve V reaches the roller 4, the tension of the spring 5 is practically exhausted so that the machine comes to a standstill, and no parts of the tube will be injured. When removing the deflated tube, the handle Sis employed after first releasing the lever 14.- to permit operation of the brake 9. By turning this handle in the proper direction, the tube is unwound from the reel and at the same time the spring 5 is placed under tension and held by the brake 9 so that the machine is in readiness for further use.

- From the foregoing, taken in connection With the accompanying drawings, it will be obvious that although the machine is of sim- 20 ple and comparatively inexpensive nature, it will effect a great saving in time and labor. For these reasons, thewfeatures of described constitute the preferred form of the deflating device,

but it is to be understood that within the Scope of the invention as claimed, numerous changes may be-made without sacrificing the principal advantages.

I claim:

l. A tire tube deflating device comprising a tube reel, a pressing roller for forcing the tube against the reel, means for driving said reel, said means decreasing in power as it operates, means for turning the reel in a reverse direction to remove the deflated tube and to simultaneously restore the power of the driving means, and means for holding power.

2. A tire tube deflating device comprising a tube reel, a pressing roller for forcing the tube against the reel, spring means for drivingsaid reel, means for turning the reel side of said reel, a U-shaped frame in a reverse direction to remove the deflated tube and to simultaneously rewind the spring means, and means for holding said driving means under power.

3. A tire tube deflating device comprising a tube reel, a pressing roller for forcing the tube against said reel, means for winding the reel, said means decreasing in power as it Operates, means for turning the reel in the reverse direction to simultaneously un- Wind the deflated tube and again restore the power of the reel winding means, a brake wheel carried by the reel, a laterally suinging arm having a portion shaped to engage the periphery of said wheel, said portion having therein a cam groove decreasing in depth toward one end, a ball in said groove cooperating with the brake wheel, means for rocking said arm to engage the ball with the wheel, and means for overcoming said last named means to so shift the arm as to disengage said ball from the wheel.

4. A tire tube deflating device comprising a base, a pair of end frames rising therefrom, a tube reel rotatably supported by and extending between said end frames, a rod extending between said end frames to one I sup-- ported rockably on said rod and carrying a pressing roller between its arms for cooperation With the reel, a rigid arm depending from the cross bar of said U-shaped frame, and means connected with said arm for so rocking the frame as to force the pressing roller toward the reel.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

HENRY J. OTTO. Witnesses:

RUSSEL MAHAN, EVERETT BRAMMER. 

